print help

mouser13 has asked for the wisdom of the Perl Monks concerning the following question:

I need to print out someing in the format of %CALC{$EVAL(R2:C2 - R1:C2)}%

print "%CALC{\"" . "\$EVAL( R$c:C2 - R$pi:C2)\"}";
[download]

I keep getting Can't modify constant item in scalar assignment at CWMSDataPlugin.pm line 76, near ""\$EVAL( R$c:C2 - R$pi:C2)\"} " ;"

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Re: print help by toolic (Bishop) on Nov 01, 2012 at 18:49 UTC
I see that you have solved your problem. Additionally, you could use qq to reduce some of that clutter (fewer quotes and backwhacks): `print qq/%CALC{"\$EVAL( R$c:C2 - R$pi:C2)"}/;` [download]	[reply] [d/l]
Re: print help by Riales (Hermit) on Nov 01, 2012 at 18:49 UTC
`print "%CALC{\$EVAL(R${c}:C2 - R${pi}:C2)}%";` [download] Perl can't divine where your `$c` and `$pi` variable names start/end in the string, so you have to wrap them in curly braces. Edit: Whoops, the code is right (I think), but the reasoning is wrong. Didn't notice that a colon immediately followed the variable names; that renders what I said before moot. Edit2: Ah, toolic has pointed out the real problem already.	[reply] [d/l] [select]
Re: print help by mouser13 (Novice) on Nov 01, 2012 at 18:34 UTC
oops I somehow removed the varible assignment I had $ sign. Sorry	[reply]